DE68916581T2 - Dreifarbentrennung mittels subtraktiven dichroitischen Strahlteiler. - Google Patents

Dreifarbentrennung mittels subtraktiven dichroitischen Strahlteiler.

Info

Publication number: DE68916581T2
Authority: DE; Germany
Prior art keywords: subtractive; color separation; beam splitters; dichroic beam; dichroic
Prior art date: 1988-04-21
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Expired - Fee Related

Application number

DE68916581T

Other languages

English (en)

Other versions

DE68916581D1 (de

Inventor

Richard R Baldwin

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Hewlett Packard Development Co LP

Original Assignee

Hewlett Packard Co

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1988-04-21

Filing date

1989-04-19

Publication date

1994-10-27

1989-04-19 Application filed by Hewlett Packard Co filed Critical Hewlett Packard Co

1994-08-11 Publication of DE68916581D1 publication Critical patent/DE68916581D1/de

1994-10-27 Application granted granted Critical

1994-10-27 Publication of DE68916581T2 publication Critical patent/DE68916581T2/de

2009-04-20 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

Links

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3102—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators
- H04N9/3105—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators for displaying all colours simultaneously, e.g. by using two or more electronic spatial light modulators
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/10—Beam splitting or combining systems
- G02B27/1006—Beam splitting or combining systems for splitting or combining different wavelengths
- G02B27/102—Beam splitting or combining systems for splitting or combining different wavelengths for generating a colour image from monochromatic image signal sources
- G02B27/1046—Beam splitting or combining systems for splitting or combining different wavelengths for generating a colour image from monochromatic image signal sources for use with transmissive spatial light modulators
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/10—Beam splitting or combining systems
- G02B27/14—Beam splitting or combining systems operating by reflection only
- G02B27/145—Beam splitting or combining systems operating by reflection only having sequential partially reflecting surfaces
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/28—Interference filters

DE68916581T 1988-04-21 1989-04-19 Dreifarbentrennung mittels subtraktiven dichroitischen Strahlteiler. Expired - Fee Related DE68916581T2 (de)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US07/184,459 US4962997A (en)	1988-04-21	1988-04-21	Three color separation using subtractive dichroic beamsplitters

Publications (2)

Publication Number	Publication Date
DE68916581D1 DE68916581D1 (de)	1994-08-11
DE68916581T2 true DE68916581T2 (de)	1994-10-27

Family

ID=22676952

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DE68916581T Expired - Fee Related DE68916581T2 (de)	1988-04-21	1989-04-19	Dreifarbentrennung mittels subtraktiven dichroitischen Strahlteiler.

Country Status (4)

Country	Link
US (1)	US4962997A (de)
EP (1)	EP0338810B1 (de)
JP (1)	JPH01317085A (de)
DE (1)	DE68916581T2 (de)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5105265A (en) *	1988-01-25	1992-04-14	Casio Computer Co., Ltd.	Projector apparatus having three liquid crystal panels
US5272553A (en) *	1988-10-28	1993-12-21	Sharp Kabushiki Kaisha	Projection type liquid crystal display device with twisted nematic liquid crystal layers
US5073830A (en) *	1990-01-09	1991-12-17	Greyhawk Systems, Inc.	High-efficiency polarized light source
KR920010809B1 (ko) *	1990-05-19	1992-12-17	주식회사 금성사	Lcd 프로젝터의 광학 시스템
GB9322948D0 (en) *	1993-11-08	1994-01-05	Varintelligent Bvi Ltd	Liquid crystal display
JPH07234501A (ja) *	1994-02-22	1995-09-05	Matsushita Electric Ind Co Ltd	色分解装置およびカラー画像読取装置
US5757547A (en) *	1995-04-24	1998-05-26	Polycom, Inc.	High efficiency homogeneous polarization converter
US6046858A (en) *	1997-10-16	2000-04-04	Aurora Systems, Inc.	Light separation and recombination system for an off-axis projector
JP3959878B2 (ja) *	1998-04-08	2007-08-15	セイコーエプソン株式会社	光選択プリズムの製造方法
US6191893B1 (en) *	1999-06-04	2001-02-20	Philips Electronics North America Corporation	Color projection display system with improved hue variation
US6375330B1 (en)	1999-12-30	2002-04-23	Gain Micro-Optics, Inc.	Reflective liquid-crystal-on-silicon projection engine architecture
US20020176054A1 (en) *	1999-12-30	2002-11-28	Mihalakis George M.	Reflective liquid-crystal-on-silicon projection engine architecture
RU2265964C2 (ru) *	2003-08-05	2005-12-10	Бурчак Глеб Федорович	Способ формирования светового потока на внешнем экране для полноцветной системы отображения видеоинформации и устройство для его осуществления
KR101019478B1 (ko) *	2003-12-31	2011-03-09	엘지전자 주식회사	투사 표시 장치
US7320521B2 (en) *	2004-07-12	2008-01-22	Next Wave Optics, Inc.	Optical engine architectures
US7530693B2 (en) *	2005-05-31	2009-05-12	Next Wave Optics Inc.	Single MEMS imager optical engine
JP6480091B1 (ja)	2017-07-06	2019-03-06	浜松ホトニクス株式会社	ミラーユニット及び光モジュール

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2858731A (en) *	1954-10-21	1958-11-04	Miles P Rehorn	Three dimensional projector systems
US2909097A (en) *	1956-12-04	1959-10-20	Twentieth Cent Fox Film Corp	Projection apparatus
FR2185802B1 (de) *	1972-05-23	1976-10-29	Roux Armand
US4127322A (en) *	1975-12-05	1978-11-28	Hughes Aircraft Company	High brightness full color image light valve projection system
US4786146A (en) *	1987-02-11	1988-11-22	Hughes Aircraft Company	Color sequential illumination system for a liquid crystal light valve
JP2910009B2 (ja) *	1993-06-22	1999-06-23	花王株式会社	線状体の切断装置

1988
- 1988-04-21 US US07/184,459 patent/US4962997A/en not_active Expired - Lifetime
1989
- 1989-04-19 EP EP89303892A patent/EP0338810B1/de not_active Expired - Lifetime
- 1989-04-19 DE DE68916581T patent/DE68916581T2/de not_active Expired - Fee Related
- 1989-04-21 JP JP1103330A patent/JPH01317085A/ja active Pending

Also Published As

Publication number	Publication date
EP0338810A2 (de)	1989-10-25
DE68916581D1 (de)	1994-08-11
EP0338810A3 (en)	1990-03-21
EP0338810B1 (de)	1994-07-06
US4962997A (en)	1990-10-16
JPH01317085A (ja)	1989-12-21

Legal Events

Date	Code	Title	Description
1995-08-03	8364	No opposition during term of opposition
2001-08-09	8327	Change in the person/name/address of the patent owner	Owner name: HEWLETT-PACKARD CO. (N.D.GES.D.STAATES DELAWARE),
2005-05-25	8327	Change in the person/name/address of the patent owner	Owner name: HEWLETT-PACKARD DEVELOPMENT CO., L.P., HOUSTON, TE
2007-02-15	8339	Ceased/non-payment of the annual fee

Publication	Publication Date	Title
DE68916581D1 (de)	1994-08-11	Dreifarbentrennung mittels subtraktiven dichroitischen Strahlteiler.
DK159357C (da)	1991-03-04	Hoereapparat, navnlig til anbringelse i oeret
DE68923186T2 (de)	1995-11-02	Farbprojektionssystem.
NO905579D0 (no)	1990-12-21	Spilleapparat.
NO900543L (no)	1990-08-22	Fremgangsmaate for retningsbestemmelse i borehull.
DE322587T1 (de)	1990-02-08	Lautsprechermembran.
DE68916451D1 (de)	1994-08-04	Optisches Projektionssystem.
DE58905563D1 (de)	1993-10-14	Projektionskopf.
DE69011050D1 (de)	1994-09-01	Polarisationsempfindlicher Bündelspalter.
NO892487D0 (no)	1989-06-15	Kommunikasjonssystem.
FI885236A (fi)	1989-05-14	Digitalbrytare foer telekommunikation.
DE68908495T2 (de)	1994-02-03	Optischer Strahlteiler.
DE3888842D1 (de)	1994-05-05	Bildreproduktionsapparat.
FI870608A0 (fi)	1987-02-13	Provtagare foer flytande aemne.
DE69016447D1 (de)	1995-03-09	Digital-optisches tonsystem.
NO904891D0 (no)	1990-11-12	Demonterbar roerforbindelse.
IT1237508B (it)	1993-06-08	Procedimento per preparare n-fosfonometilglicina.
DE68905624T2 (de)	1993-07-29	Tischausruestung.
DE69022695D1 (de)	1995-11-02	Phasenteileranordnung.
DE68912519D1 (de)	1994-03-03	Repro-Kamera.
NO881867L (no)	1989-10-30	Fremgangsmaate ved ensilering.
NO892244L (no)	1989-12-07	Fremgangsmaate til immundiagnostisk bestemmelse.
NO872282D0 (no)	1987-06-01	Framgangsmaate for traaling.
FI884217A0 (fi)	1988-09-14	Foerfarande och anordning foer att lasta, transportera och trava virke.
FI903592A0 (fi)	1990-07-16	Universell mikrokrets foer telekommunikationstillaempningar.